package IMIC_TrinhCongDoc.bai02.lv2;

public class model {
public double Chuvi (use a1){
	double kq = a1.getA()*8;
	return kq;
	
}
public double Dientich (use a1){
	double kq = (2+(4/(Math.sqrt(2)))*a1.getA()*a1.getA());
	return kq;
}
}
